diff options
| author | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2021-11-30 03:39:49 +0100 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2021-12-06 21:37:22 +0100 |
| commit | 5e6cd84e2f8bd3619b5d8f3dd4b44c0086a6ce1d (patch) | |
| tree | c733e7aecc9b0159aa0815bd87aef9410cfb1e8b /kernel/trace | |
| parent | tracing: Have eprobes use filtering logic of trace events (diff) | |
| download | linux-5e6cd84e2f8bd3619b5d8f3dd4b44c0086a6ce1d.tar.xz linux-5e6cd84e2f8bd3619b5d8f3dd4b44c0086a6ce1d.zip | |
tracing/kprobes: Do not open code event reserve logic
As kprobe events use trace_event_buffer_commit() to commit the event to
the ftrace ring buffer, for consistency, it should use
trace_event_buffer_reserve() to allocate it, as the two functions are
related.
Link: https://lkml.kernel.org/r/20211130024319.257430762@goodmis.org
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace')
| -rw-r--r-- | kernel/trace/trace_kprobe.c | 25 |
1 files changed, 7 insertions, 18 deletions
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c index 33272a7b6912..d10c01948e68 100644 --- a/kernel/trace/trace_kprobe.c +++ b/kernel/trace/trace_kprobe.c @@ -1383,17 +1383,11 @@ __kprobe_trace_func(struct trace_kprobe *tk, struct pt_regs *regs, if (trace_trigger_soft_disabled(trace_file)) return; - fbuffer.trace_ctx = tracing_gen_ctx(); - fbuffer.trace_file = trace_file; - dsize = __get_data_size(&tk->tp, regs); - fbuffer.event = - trace_event_buffer_lock_reserve(&fbuffer.buffer, trace_file, - call->event.type, - sizeof(*entry) + tk->tp.size + dsize, - fbuffer.trace_ctx); - if (!fbuffer.event) + entry = trace_event_buffer_reserve(&fbuffer, trace_file, + sizeof(*entry) + tk->tp.size + dsize); + if (!entry) return; fbuffer.regs = regs; @@ -1430,16 +1424,11 @@ __kretprobe_trace_func(struct trace_kprobe *tk, struct kretprobe_instance *ri, if (trace_trigger_soft_disabled(trace_file)) return; - fbuffer.trace_ctx = tracing_gen_ctx(); - fbuffer.trace_file = trace_file; - dsize = __get_data_size(&tk->tp, regs); - fbuffer.event = - trace_event_buffer_lock_reserve(&fbuffer.buffer, trace_file, - call->event.type, - sizeof(*entry) + tk->tp.size + dsize, - fbuffer.trace_ctx); - if (!fbuffer.event) + + entry = trace_event_buffer_reserve(&fbuffer, trace_file, + sizeof(*entry) + tk->tp.size + dsize); + if (!entry) return; fbuffer.regs = regs; |